/*
 * Copyright 2019. Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.android.apps.santatracker.games

/** Interface for Activities that observe sign-in state, normally used with [GameActivity].  */
interface SignInListener {

    /**
     * Called when sign-in fails. As a result, a "Sign-In" button can be shown to the user. Not all
     * calls to this method indicate an error, sign-in is expected to fail when the user has never
     * signed in before.
     */
    fun onSignInFailed()

    /**
     * Called when sign-in succeeds and the application can begin to take action on behalf of the
     * user.
     */
    fun onSignInSucceeded()
}
